Holding(s) in Company

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached: ii

GREENKO GROUP PLC (LN*)

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

x

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to the notification obligation: iii

IMPAX ASSET MANAGEMENT LIMITED

4. Full name of shareholder(s)

(if different from 3.): iv

FCP TERRA MUNDA

IMPAX ASIAN ENVIRONMENTAL MARKETS (IRELAND)

IMPAX ASIAN ENVIRONMENTAL MARKETS PLC

IMPAX ENVIRONMENTAL MARKETS (IRELAND)

IMPAX ENVIRONMENTAL MARKETS PLC

IMPAX GLOBAL RESOURCE OPTIMIZATION FUND

LGS FUND

PARVEST ENVIRONMENTAL OPPORTUNITIES FUND

SHINHAN BNPP BONJOUR CLEAN WORLD FUND

THE ENVIRONMENT AGENCY FUND

5. Date of the transaction and date on which the threshold is crossed or reached: v

30 MAY 2013

6. Date on which issuer notified:

4 June 2013

7. Threshold(s) that is/are crossed or

reached: vi, vii

5%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

Ordinary Shares

IM00B28KLZ74LN

8,167,825

5.4213%

7,167,825

N/A

7,167,825

N/A

4.7576%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/ConversionPeriod xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

 NIL

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exerciseprice

Expirationdate xvii

Exercise/Conversionperiod xviii

Number of votingrights instrumentrefers to

% of voting rights xix, xx

 NIL

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

 7,167,825

 4.7576%

9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi

FCP TERRA MUNDA (1,039,077 SHARES 0.6897%)

IMPAX ASIAN ENVIRONMENTAL MARKETS (IRELAND) (26,733 SHARES 0.0177%)

IMPAX ASIAN ENVIRONMENTAL MARKETS PLC (549,138 SHARES 0.3645%)

IMPAX ENVIRONMENTAL MARKETS (IRELAND) (771,470 SHARES 0.5121%)

IMPAX ENVIRONMENTAL MARKETS PLC (2,964,490 SHARES 1.9676%)

IMPAX GLOBAL RESOURCE OPTIMIZATION FUND (79,900 SHARES 0.0530%)

LGS FUND (273,500 SHARES 0.1815%)

PARVEST ENVIRONMENTAL OPPORTUNITIES FUND (964,677 SHARES 0.6403%)

SHINHAN BNPP BONJOUR CLEAN WORLD FUND (8,150 SHARES 0.0054%)

THE ENVIRONMENT AGENCY FUND (490,690 SHARES 0.3257%)

Proxy Voting:

10. Name of the proxy holder:

N/A

11. Number of voting rights proxy holder will cease to hold:

N/A

12. Date on which proxy holder will cease to hold voting rights:

N/A

13. Additional information:

Based on 150,661,606 issued ordinary shares

14. Contact name:

 Michael Knight, Compliance Officer

15. Contact telephone number:

 +44 (0)207 4341122